第51章 研制火箭发动机

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旁,每隔十分钟就测一次温度,记录一次压力,熬了两个通宵,终于掌握了最佳的铸造参数。当第一批次合格的铝合金零件出炉时,老常的眼睛里满是血丝,却笑得像个孩子。
    喷射器的精密加工和热处理更是难上加难,喷射器的喷孔加工时稍微不小心就会断刀,热处理的温度和时间差一点,都会影响喷射器的硬度。林嘉娴主动承担了这个任务,她对厂里的精密车床特别熟悉,坐在车床前,手里拿着卡尺,仔细测量每一个喷孔的尺寸。有次加工到深夜,喷孔突然断刀,她没放弃,凭着记忆调出上次加工高精度零件时的参数,重新调整车床,直到天亮,终于加工出合格的喷射器。
    推力室的成型丶焊接和组装是最后一道难关。推力室由燃烧室丶喷管和冷却套组成,焊接时需要保证焊缝的密封性,不能有半点泄漏。王北海和焊接师傅一起,采用氩弧焊的工艺,一点一点地焊接,每焊完一段,就用肥皂水检测密封性。
    保密车间里,到处都是忙碌的身影,工人们穿着蓝色工装,戴着安全帽,有的在操作工具机,有的在焊接零件,有的在检测尺寸。王北海他们几位技术指导则穿梭在各个工位之间,解答工人的疑问,解决遇到的技术难题。车间里的机器轰鸣声丶焊接时的滋滋声丶工具碰撞声,交织在一起,形成激昂的攻坚之歌。
    而柴油机厂的食堂,也成了大家忙碌之馀的「补给站」。不过,此时正赶上自然灾害,粮食供应不足的问题越来越明显,厂里的工人们都把「吃食堂」改成了「吃伙上」,带着点无奈的调侃。
    柴油机厂的伙食完全按照国家标准建设,每十五个工人配备一名炊事员,餐食服务很到位。为了保障夜班职工的用餐,晚餐供应时间一直持续到凌晨一点以后,成了名副其实的「深夜食堂」。伙房的师傅们也很用心,每天都尽量把馒头做得大一点,粥熬得稠一点;对重体力工种的工人,还上浮了粮食供应标准,夜班职工更是能领到一点副食补助,比如一小块肉或者一个鸡蛋。林嘉娴来打饭时,伙房的老金师傅总会多给她盛一勺粥:「阿娴,女孩子家跟他们一帮男同志硬抗,身体哪里吃得消,多喝点粥垫垫。」
    但即便如此,粮食紧缺的问题还是很突出,每个工人每月的主食定额是三十七斤半,对于女职工来说,勉强够吃,但对于男职工,尤其是乾重体力活的工人来说,根本不够,只能长期处于七分饱的状态。
    时间久了,工人们也总结出了一套用餐经验:一是打完饭就带回宿舍吃,断了在食堂没吃饱想再买的念头,因为伙房的粮食都是按定额分配的,根本没有多馀的;二是吃饭的时候蹲着吃,利用胃部的压迫感提升果腹感,让自己感觉吃得更饱一点。
    王北海他们也面临着同样的问题,老常饭量虽然不大,但总觉得饿;大民身强体壮,正是能吃的时候,每次都把馒头掰成小块,慢慢吃,想让自己吃得更久一点;林嘉娴则总是把自己的馒头分一点给王北海,说自己吃不完,她在厂里熟人多,偶尔能从伙房师傅那多蹭一口粥,倒也没那麽饿。
    王北海却有自己的鬼点子,他发现伙房早上熬的玉米糊糊比较稀,就提前跟老金师傅说,多给自己盛点锅底的糊糊,锅底的糊糊更稠,能顶饿。他在敬老院宿舍里时不时从帆布包里掏出点炒南瓜籽和红薯干,都是之前大黄塞进来的,饿了就拿出来分给老常和大民暂时顶一顶。有时晚上加班到深夜,他会带着大家去伙房,跟老金师傅商量,用自己的副食票换一点米汤,大家分着喝,既能暖身子,又能稍微填填肚子。
    有一次,王北海听说郊区的农民种了红薯,眼下正是挖红薯的时令,就趁着周末,骑着借来的自行车去郊区,用自己的粮票换了一袋红薯,带回敬老院。晚上,他和老常丶大民丶林嘉娴在敬老院的小厨房里,用煤炉烤红薯吃。红薯的香味飘满了整个小院,老周师傅和其他老人也过来凑热闹,大家围着煤炉,边吃红薯边聊天。
    夜深了,王北海便把林嘉娴给送回了家,然后再独自返回敬老院。
    宿舍里,大民握着半个还没舍得吃的烤红薯说:「等咱们把火箭送上天,定要好好吃它一顿,把这阵子的亏都补回来。」
    王北海点头称是:「必须滴,到时候咱们去阿香饭馆,点大桌菜,吃个痛快。」
    老常则起身泡了杯茶,端着热乎乎的茶杯望着窗外漆黑的夜空,眼中精光闪烁。
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